Is there a way to NDM a particular number of records?

venksiv · New User Joined: 20 Jun 2015 Posts: 26 Location: INDIA

Hi all,

I have a huge list of PS files which are required in the testing environments. I do not need the full file (might contain even millions of records). Is there a way to override the default FULL file transmission and transmit only a lesser, say 1000, records in the file during NDM proc execution?

Please share your expertise.

My attempt:
I thought a roundabout way but I'm sure is not suitable for this situation as this might involve execute multiple JCL - one thousand jobs for one thousand files unless I write a logic to combine EXEC steps to allowed limit in a single job:
Step 1: Construct the JCL IDCAMS step to REPRO the file with COUNT(N) as 1000
Step 2: Append a NDM step to transmit the REPRO output file
Step 3: Execute each job corresponding to a file

venksiv · New User Joined: 20 Jun 2015 Posts: 26 Location: INDIA

I only need a reduced number of records to be sent to target region. Kindly advise if there is a way restrict NDM from transmitting full file but send only a lesser number of records - "intentionally truncate a file" in other words.

Nic Clouston · Posted: Fri Mar 11, 2016 2:01 pm

You could, possibly, pre-allocate your output datasets to a minimal size with no secondary extents and the NDMs will fail with space errors but you could live with that. Try with one dataset first. Otherwise, if it ain't in the manual it ain't possible.

venksiv · New User Joined: 20 Jun 2015 Posts: 26 Location: INDIA

Thanks, Nic.

I spent a few extra hours and implemented the second idea and it's working fine so far.